"We have been working on this particular case for some time. We have provided information and intelligence relating to the possible site of a mass grave ... But we are still waiting for confirmation if this site has indeed been located," EULEX Kosovo spokeswoman Kristiina Herodes said in a statement.

Cases presented to the International Criminal Tribunal for the former Yugoslavia have alleged that military forces of the former Republic of Yugoslavia and Serbia systematically shelled towns and villages, burned homes and farms, killed Kosovo Albanian civilians and sexually assaulted Kosovo Albanian women during a 1999 campaign.

Vlastimir Djordjevic, a top official in Serbia's Ministry of Internal Affairs at the time, is currently on trial before the tribunal for alleged offenses in Kosovo. Other former high-ranking Serbian officials have been tried and found guilty of war crimes in Kosovo.

Former Serbian President Slobodan Milosovic was on trial between 2002 and 2006 for alleged crimes in Kosovo, Croatia and Bosnia and Herzegovina. He died from natural causes in March 2006, before the trial ended and before a judgment was made.